M42 (LRGB)


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M42 (LRGB)

Messier: 42
NGC: 1976
Right Ascension: 5hr 35.4m
Declination: -5° 27'
Apparent Magnitude: 4

Date: October 2009
Equipment:
Telescope: Meade 16" Schmidt Cassegrain with f6.3 reducer
Camera: SBIG ST-10XE
Guiding: Meade 5" refractor/DSI Pro/PHD

Exposure:
Luminance: 20x3s binned 1x1
Red: 5x15s
Green: 5x15s
Blue: 5x15s

Processing Notes: All data was captured using CCDSoft. The data was reduced and aligned in CCDStack. Individual colors were combined in Sigma Beta, and saved as 32bit FITs. Files were imported to AstroArt, a log stretch was applied, and then they were combined at 1:1:1.5 and imported into Photoshop. Dim areas got a gaussian blur. The luminance was combined as the bottom layer, with a middle "multiply" layer, and a top "color" layer. The image was then flattened and final adjustments were made.
Scale: 1.01

Links to images of this object on other sites:
http://antwrp.gsfc.nasa.gov/apod/ap090222.html

Additional Comments: More M42 images are available by searching this site for M42. RGB Color, IR 3 color, and individual narrow band channels are shown.

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